Home / 487,275.02-730,421.85-203,122.90

Finding the Fourth Proportional to 487,275.02, 730,421.85 and 203,122.90

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Solution

The fourth proportional to 487,275.02, 730,421.85 and 203,122.90 is: 304,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,275.02 : 730,421.85 = 203,122.90 : x
  2. Step 2: Convert to fraction form
    487,275.02/730,421.85 = 203,122.90/x
  3. Step 3: Cross multiply
    487,275.02x = 730,421.85 × 203,122.90
  4. Step 4: Simplify right side
    487,275.02x = 148,365,406,070.10
  5. Step 5: Solve for x
    x = 148,365,406,070.10/487,275.02
  6. Step 6: Final answer
    x = 304,479.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.